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Capital Gains Tax calculator

Estimate how much you may owe on your shares, second properties, and other taxable assets.

Enter your 2025/26 tax details

Annual gain/loss generated

If you have unused registered losses from previous years, you may deduct these from the values you enter for this year's calculation below.

From selling property

From selling stocks, shares or other general investments

From selling other assets

Your results

Please enter your details to calculate your Capital Gains Tax for the current tax year.

Speak to our experts about Capital Gains Tax

Do you have questions about CGT on the products we offer? Our expert team can help you understand how it might affect you and what your options are.

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What is Capital Gains Tax?

Capital Gains Tax is tax you may have to pay if you sell or transfer certain assets – such as antiques, vintage cars or shares – that have increased in value during the time you’ve owned them. How much CGT you pay depends on the type of asset sold, the profit made, your annual income and any losses you may have made in previous years. Read more about what Capital Gains Tax is and when it needs to be paid.

Learn more about tax-efficient investing

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As with all investing, your capital is at risk. These calculations are based on a number of assumptions, (including that pension contributions are zero in the tax year) are for illustrative purposes only and do not constitute tax advice or recommendations.

Tax rules vary by individual status and may change. This is general information, not personalised tax advice.